Dry Ball Mill Of Aluminum Powder
2020 5 30 Dry ball milling and wet ball milling for fabricating . The mill vessel was made of polyurethane 0.5 l and the milling balls were made of zirconia 1 3 and 5 mm in diameter The weight ratios of ball to powder and 3 kinds of milling balls are 5 1 and 1 1 1 respectively The rotation speed of the mill vessel is 140 r min −1 Reduction was carried out in hydrogen
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